Here you'll find the explanation for the general settings of the Voice Search app.
Turn app on or off
Use this setting to turn the app on or off. When you use this setting to turn the app off, the app will only be disabled. Lightspeed will still send you an invoice for this app, because this setting turns the app off temporary.
Immediately submit search form after speech
Use this option to immediately go to the search results after speaking. When this option is disabled, the user needs to click the search button to navigate to the search results. When your theme supports live-search, the user sees will still see the recommended results immediately after speaking, also when disabling this option.